Electric field intensity and potential difference - Jamb Physics Past Questions and Answers

Question 1:

• JAMB 2019

If the time of flight is 96seconds, calculate the horizontal range through the point of projection.

A. 84400m
B. 69000m
C. 61440m
D. 24000m

Question 2:

• JAMB 1983

If the force of a charge of 0.2 coulomb in an electric field is 4N, then the electric field intensity of the field is

A. 0.8
B. 0.8N/C
C. 20.0N/C
D. 4.2N/C
E. 20.0N/C

Question 3:

• JAMB 1992

Calculate the force acting on an electron of charge 1.6 x 10^-19C placed in an electric field of intensity 10⁸Vm^-1

A. 1.6 x 10^-11N
B. 1.6 x 10^-14N
C. 1.6 x 10^-16N
D. 1.0 x 10^-16N

Question 4:

• JAMB 1995

Two parallel plates at a distance of 8.0 x 10^-3m apart are maintained at a p.d of 600 volts with the negative plate earthed. What is the electric field strength?

A. 4.8 Vm^-1
B. 75.0Vm^-1
C. 4800.0Vm^-1
D. 75000.0Vm^-1

Question 5:

• JAMB 1998

Find the work done in moving a 2 C charge between two points X and Y in an electric field if the potential difference is 100 volts

A. 50J
B. 100J
C. 200J
D. 400J